# Drill bit Proline 12 mm, model 71240, length 400 mm, single piece

**URL:** https://aio.lv/en/product--proline-71240--11721110
**Data updated:** 2026-03-08 11:24 (EET)
**Category:** Drill Bits
**Manufacturer:** Proline
**Manufacturer code:** 71240
**EAN:** 5903755712400
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 8.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 7.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proline-71240--11721110

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Proline drill bit model 71240 — a single 12 mm diameter metal drill bit with 400 mm length. Designed for drilling through metal and other hard materials, it suits workshop and construction use where extended reach is required. Compatible with standard chucks; provides a long-reach solution for deep or hard-to-access holes.

## Long description

Proline drill bit 12 mm model 71240 is a single-piece, long-reach metal drill bit with a total length of 400 mm. Designed for drilling through metal and other hard materials, it fits standard chucks and is intended for workshop, construction and industrial use where extended reach is required. The drill bit features a double-twist design and a four-blade insert geometry that aid chip evacuation and stability during drilling into dense substrates.
Advantages
The 12 mm Proline drill bit combines extended length with a rigid single-piece construction to enable deep or hard-to-access drilling without the need for extensions. The double-twist flutes promote faster chip removal, while the four-blade insert with optimised geometry improves cutting efficiency and helps maintain a straighter bore. Compatibility with standard chucks allows use with common drills and drill drivers.
Suitable for
 Drilling through metal sheets, structural steel and similar hard materials
 Creating deep or hard-to-reach holes in workshop and construction environments
 Industrial and professional applications requiring extended-reach drilling
 Use with drills that accept 12 mm bits and standard chucks
Key specifications
 Diameter: 12 mm
 Overall length: 400 mm
 Quantity: single piece
 Design: double-twist flutes with four-blade insert geometry
 Intended materials: metal and other hard substrates
How to use
Mount the 12 mm Proline bit securely in a compatible drill chuck. Select an appropriate rotational speed and feed rate for the material being drilled; reduce speed for harder metals to avoid overheating. Apply steady axial pressure and allow the bit to cut without excessive force. Periodically withdraw the bit to clear chips and ensure effective cooling, and use cutting fluid as appropriate for metalworking to extend tool life.
Usage recommendations
For best results when drilling hard metals, use light cutting fluid and moderate speed, and check chuck tightness before operation. Inspect the bit for wear or damage after extended use and replace when cutting performance degrades.

## Specifications

| Feature | Value |
|---|---|
| Length | 400 mm |
| Metal drill bits diameter | 12 |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the Drill bit Proline 71240 — 12 mm, 400 mm cost, and is it available for purchase?

The price is 8.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 100 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 07.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Proline products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Proline service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11721110/67192276_large.webp